Brake shoe



Pate-ratecl Jan. 29, 192%.

cmaan S'ETES.

PATENTOFFICE( 3 JOHN H. EISENBERG, SUFFEBN, NEW YORK, ASSIGNOR'TO TEEAMERICAN BRAKE SHOE & FOUNDRY COMPANY, 'OF \VILMINGTON, DELAWARE, ACOR?QBATION OF nnmxwaan.

BRAKE SIEIOE Application filed January30, 1923. Serial N0. 615,804.

T0 all w/wm c't mag c0ncern: k

.Be it kncwn that I, JOHN H. EISENBERG a citizcn cf thc United Statcsresicling at Suffern, in tl1e county cf State cf New York, havcinvcntccl certain ncw ancl useful Improvcments in Brakc Shoes, cfWlllCll ll1e fiollowing is a spccification.

This invention rclates t0 blake shces and n1ore particularly t0 thcsesl1ces provicled with a reinforcing back; and its object is'to provide aonc piecc back having a transverse section securecl thereto t0 fcrm theattachfing lug ancl having its frce encl sccurcly anchored under theback.

A further object cf hc invention is tc provide a reinforcing back ior abrake shoe which emboclies a transverse section EO fo1n1 thc attachinglug sccurcly engagccl witl1 fhc back ancl adaptccl to bc cconomicall'ystampccl .out cf one sheet cf metal.

In thc accompanying clrawings I havc illustratcd a selectecl emboclimcntcf the invention in a flangel brakc sl1oe ancl referring thereto Fig. 1is a Plan vicw cf a brake shoc emboclying thc invention;

Fig. 2 is a plan vicw of a blank cut to form the reinforcc back;

Fig. 3 is a view similar to Figg 2 showing a complete back;

Fig'. 4: i.s a transversc scctional vicw 011 the linc l4= cf Fig. l.

Figs. 5 and 6 a1c fragmentary vicws silnilar t0 Fig, 3 b[1t showingothcx forma which n1y invention 1nay fake.

Refcrring L0 thc drauvings the brake sl1oc shown compliscs thcrcinfoicing back'5 and lhe body 6 which is cast 011 the back in thcusual manncr. Thc back is 1naclc fro1n a blank 7 of suitable sizc,sliapc ancl gauge ancl a transvcrsc scction 8 is stamped up there fromto forin the attaching lug 9. The transverse section is attachecl ab onecnd 10 110 thc blank and its othcr encl is cut frcc f1'0n1 the blankancl is provicled with lateral projections 11. Vhcn the transversescction is stampecl up as shown inl3ig. 4 to f011n i;hc attaching lugthe frec encl is deprcssed bel0w the plane cf thc back so that thclateral projections Will slide wider the side eclges of the slot formedby stamping up thc scction to the positicn shcwn in lig. 4 whcre tl1cscprojcctioi1s are anchorccl nnde1 the Rocklanfl anrl side edges of saiclslot. Thus the transverse sectiou when I"ormed into the attaching lug 9is integrally connccted ab onc end so thc back and is securely anclioredat its frec en l beneath thc back ancl is aclapteclto stand all cf thestrains ancl stresses to Which attaching lugs are subjected in bancllingand in service; The lug section may be secured I0 the back by riveting,Welcling er othcrwise, instead of being integrally sccurecl thereto.'Il1us in Fig. 5 I have illustrated a back 5 which comprises an attaching lug 9 rigidly sccurecl' to thc back by 1ncans of a rivet- .15. Andin Fig. 6 I have illustratcd a rcinforcing back 5 having an attachingwelclecl to thc back as indicatecl at 16.

Tl1e back may be provi led with any numbcr of openings 12 ancl rccesses13 disposecl in any desired manncr t0 aclmit the body 1netal cluring'theczisting peration for con necting thc back t0 the body.

The invention provicles a reinforcing back whicli can be economicallymade out cf a singlc piece cf 1netal and proviclcd by simple cuttingancl stamping operations with an attaching lug which is securely cngagedwith the bacl the sicles ofthe lug as inclicated at 14-14 to reinforceand strengthen lt.

I have illustrated the invention in onc type cf fianged brake shoe but I(lo not Wish t0 be unclcrstood as restricting thc invention t0 l3l1lSembodiment bec-ause it Will bc readily unclerstcod that lt can be useclin ccmpcsiic sl1oes and in shoes cf a great varicty cf sizes ancl shapcsals wcll as Witl1 backs constructecl differenfly from that shown,With0ut cleparting fron1 thc innenti0n, and I reservc thc right to n1akcall such changes"in the forrn, construction and arrangcmcnt cf parts asclearly fal1 withln the scope o'f thc following clztims.

I claim:

l. A back for a .bl'akc sboe having a strip bent to :Eonn an attachinglug f01 fl1e shoe, saicl strip being secrecl ab 0ne cnd tc thc back andbaving its 0tl1cr end f1ce but interlockingly engaged with alle back.

2. A back for abrake shoe having a strip lug 9" spot-.

The body metal 1nay be run up at bent t0 form anattaching lug f01 tl1eshoc, y

said strip being securecl ab one end to the back ancl having its otherencl free and 1nterlockingly engagecl W1th tbe unders1de cf tbc back.

8. A back for a brake shoc having a transverse section stamped upthcrcfrom to form an attaching 111g f01 t-he shoe, said section beingsecurecl at 0ne end t0 thc back and having its oihcr cnd providerl W'1thlateral projectionsengaging fhe undersidc 0f ehe back.

4. A. back for a b1ake shoc i0rmed from a single blank 0f shect metalund having a transverse section cut thercfrom along two sides and oneend and ixitcgra1ly connectcd therewith at it s other cnd, said sectionhaving 1ts frec end dcpressed und provxded W1i:h l:1feral progcctmns tocngngc thc unders1dc cf thc back and being bent bctween its ends t0 forman attaching lug f01 thc shoc.

5. A }orake Shoc comprising a b0dy und a reinforce back connected 'tothe b0 ly, said back being formed 0f a single sheet of mctal and havmg at'mnsverse sect1on cut und bent therefrom to folm the attaching ]ug 0'fthe shoe, said section being integrally connected with the back at oneend und having lateral projections at its othcr cnd cngaged with alleunderside 0f the back, the body metal being extended up at thc sides 01the Ing t0 reinforce and strengthcn the samc.

JOHN H. EISENBERG.

